Calculating wavelength inside a cantenna at 1420 MHz (Hydrogen Line)
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SARA Analytical Section if it’s website and 20m Skynet dish at Greenbank
SARA’s web Analytical Section … https://www.radio-astronomy.org/node/200 talks of the 20m dish telescope.
Cygnus A hydrogen source type from SARA Meeting 21/12/2025
@Rick K0GD Cyg A is a continuum source, so you won’t see it in hydrogen line. Instead you will just see an increase in power over the whole spectrum when…
Linear vs switched mode power supplies
Here’s a clear, practical comparison, with an emphasis on noise-sensitive and technical uses. Linear Power Supply (LPS) How it works Mains → transformer → rectifier → smoothing capacitors → linear…
Github repositories relevant to USRP B210 SDR 17/12/2025
jocover/OpenUSRP using LimeSDR to simulate USRP B210 on 7 Aug 2021 busyrock/Osmocom-GSM-For-USRP–B210 All components of Osmocom GSM project on 19 Jun 2019 ismagom/b210_usb_error Small program to demonstrate an error in…
TP-Link TL-SG116 LAN 8-port switch user manual 2025
https://www.astronomy.me.uk/wp-content/uploads/2025/12/TP-Link-TL-SG116-LAN-8-port-switch-user-manual-2025.pdf
Circuit board USRP B210 SDR 2025
Photo of circuit board for USRP B210 software-defined radio.
Cloud Managed Switch User Manual
https://www.astronomy.me.uk/wp-content/uploads/2025/12/Cloud-Managed-Switch-User-Manual-2025.pdf